Borg-warner Chemicals, Inc.

G E Chemicals, Inc.

Tracey L Thompson

Ronald L Jalbert

Thomas S Grant

David Whalen

Peter H Thompson

Brenda A Bartges

The invention provides thermoplastic blends of a polyphenylene ether, a polystyrene, a substantially hydrogenated styrene-butadiene block copolymer, and a rubbery acrylate polymer; said blends may have improved thermal stability, gloss, color, and processability, heat distortion, and impact strength.

Thermoplastic blend of polyphenylene ether polystyrene, hydrogenated

Thermoplastic blend compositions comprise a polyamide, a carboxylated polyphenylene ether resin and an impact modifier. The carboxylated polyphenylene ether resin is the product of melt mixing a mixture consisting essentially of polyphenylene ether resin and a minor amount of an ethylenically unsaturated carboxylic acid compound. The impact modifier may comprise a graft of a vinyl aromatic polymer on a rubbery substrate; a vinyl aromatic-conjugated diene-vinyl aromatic triblock polymer; a carboxylated vinyl aromatic-conjugated diene-vinyl aromatic triblock polymer; a carboxylated alpha-olefin polymer; a copolymer of an alpha-olefin compound and an unsaturated carboxylic compound; a graft of a rigid acrylic polymer on a rubber substrate; a linear low density polyethylene; or mixtures thereof.

Thermoplastic impact modified polyamide-polyphenylene ether composition

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Vienna, WV, United States of America

Tracey L Thompson